Abstract

Study of more than 1,000 cases of rheumatoid spondylitis encountered at the Mayo Clinic has yielded data which may help to clarify certain aspects of this disease and may help the physician to answer a few of the questions frequently asked concerning the condition. The erythrocyte sedimentation rate and the roentgenographic findings in cases of rheumatoid spondylitis also will be discussed briefly.

SEX, AGE AT ONSET, SYMPTOMS AND COURSE

What is the incidence of this disease in men as compared to women? In our series there was a total of 931 men and 104 women. The ratio of men to